PHPMD is a spin-off project of PHP Depend and aims to be a PHP equivalent of the well known Java tool PMD. PHPMD can be seen as an user friendly frontend application for the raw metrics stream measured by PHP Depend.

WAVE is a free web accessibility evaluation tool provided by WebAIM. It is used to aid humans in the web accessibility evaluation process. Rather than providing a complex technical report, WAVE shows the original web page with embedded icons and indicators that reveal the accessibility of that page.

As part of an effort to promote the current work on HTML to web developers, Olivier Thereaux has been working lately on integrating the W3C Markup Validator with the HTML5 parser and checker developed over the past few years by Henri Sivonen.